The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 29, 1978

Filed:

Dec. 22, 1976
Applicant:
Inventor:

Kiyoshi Mihirogi, Odawara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B / ; E01B / ;
U.S. Cl.
CPC ...
104130 ; 104 99 ; 104101 ; 104102 ; 2464 / ;
Abstract

A track switching device for selectively coupling a first track to one of second and third tracks. The switching device comprises a plurality of movable members, one of which has two parallel rails which operate such that when it is moved, the two rails are moved between the outer rails of the second and third tracks so that a selected one of the rails on the movable member is coupled to a selected one of the inner rails of the second and third tracks.


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